I AM GRATEFUL to several of my teachers for their influence: Zvi Griliches inspired me to strive for cautious and rigorous data analysis; Stephen Marglin showed me the ideological bias in economic theory; Sam Bowles and Herbert Gintis convinced me to pursue the notion of social class; Christopher Jencks stirred my interest in measuring social mobility.
In addition, I wish to thank many other colleagues for their interest in this study and for their helpful comments, especially Robert Alford, Paul Attewell, Ronald Breiger, Carolyn Clark, William Domhoff, William Frazer, Marcia Freedman, Benjamin Gorman, Bennett Harrison, John Henretta, James Henry, G. S. Maddala, Peter Meyer, and Lee Rainwater.
This study is limited to data on white males. I apologize to those who are struggling against sexist and racist tendencies in our society and in social research. The restriction in focus reflects my intent to reexamine the same data which have been widely used to rationalize the neglect of class in social research.
Thanks must go also to the Graduate School of the University of Florida for making possible the publication of this monograph.